Update at 9:20 p.m.
Police said a 20-year-old man was wounded in what's believed to be a drive-by shooting at a home in the 1200 block of Tunnel Boulevard.
The man's injuries were not life-threatening.
Police spokesman Mark Frazer said more information will be released later.
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Chattanooga police are on the way to a "person shot" call in the 1200 block of Tunnel Boulevard, according to the Hamilton County 911 page.
This will be the third shooting in the city in less than 24 hours.
A woman lying in bed in 15th Avenue was struck by gunfire that came through the walls of her home around 6:45 a.m., Chattanooga police said.
And a security guard was shot to death while breaking up a fight outside the Bella Vita restaurant/nightclub on Cowart Street.
A suspect is in custody in that death.
This is a developing story.